2086801919 has 2 divisors, whose sum is σ = 2086801920. Its totient is φ = 2086801918.

The previous prime is 2086801879. The next prime is 2086801931. The reversal of 2086801919 is 9191086802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2086801919 - 2²⁰ = 2085753343 is a prime.

It is a super-2 number, since 2×2086801919² = 8709484498284165122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2086801919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2086801949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043400959 + 1043400960.

It is an arithmetic number, because the mean of its divisors is an integer number (1043400960).

Almost surely, 2^2086801919 is an apocalyptic number.

2086801919 is a deficient number, since it is larger than the sum of its proper divisors (1).

2086801919 is an equidigital number, since it uses as much as digits as its factorization.

2086801919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 2086801919 is about 45681.5271088872. The cubic root of 2086801919 is about 1277.8907969628.

The spelling of 2086801919 in words is "two billion, eighty-six million, eight hundred one thousand, nine hundred nineteen".